Squalus & Nect Flashcards
First Ventral Constrictor
(Intermandibular)
S
O: Mid-Ventral Raphe
I: Meckel’s Cartilage
A: Raises the floor of the mouth
Second Ventral Constrictor
(Interhyoid)
S
O: Hyomandibula
I: Ceratohyal
A: Compress the oropharynx
Third through sixth ventral constictors
S
O: Vertical Raphe
I: Vertical Raphe
A: Compress Ororpharynx
Coracpbranchials
S
O: Coracoid bar
I: Ventral Gill Cartilage
A: Expands Oropharynx
First Dorsal Constrictor - Spiracular
S
O: Otic Capsule
I: Platopterygoquadrate
A: Aids to elevate the palatoquadrate
First Dorsal Constrictor - Mandibular Adductor
S
O: Platopterygoquadrate
I: Mandibular arch
A: Closes Mouth
Second dorsal constrictor
S
O: Otic Capsule
I: Hyomandibula
A: Compress oropharynx
3rd-6th Dorsal Constrictors
S
O: Vertical Raphe
I: vertical raphe
A: Compress oropharynx
First Levator
(Platopterygoquadrate Levator)
S
O: Otic Capsule
I: Palatopterygoquadrate
A: Elevates palatopterygoquadrate
Second Levator
(Hyoid Levator)
S
O: Epihyoideus
I: Epihyoideus
A: Elevates hyoid
3rd-6th Levator
(Cucullaris)
S
O: Fascia of Epaxial Muscles
I: Scapula
A: Elevates scapula
Homologous to trapezius
Common Coracoarcural
S
O: Coracoid bar
I: Mandibular adductor
A: Aids to open mouth
Coracomandibular
S
O: Coracoid bar
I: Meckel’s cartilage
A: Open’s mouth
Coracohyoid
S
O: Coracoid bar
I: Basihyal of Hyoid
A: Braces jaw for feeding
Coracobranchialis
S
O: Coracoid bar
I: Ventral Gill Cartilages
A: Expand oropharynx
Pectoral Levator
S
O: Scapula
I: Pterygiophores
A: Elevates/extend pectoral fin
Pectoral Depressor
S
O: Coracoid bar
I: Pterygiophores
A: Depress/flex pectoral fin
Dorsalis Trunci
N
O: Myosepta & Vertebra
I: Myosepta & Vertebra
A: Laterally flexes trunk
External abdominal oblique
N
O: Myosepta & Horizontal Septum
I: Myosepta & Horizontal Septum
A: Laterally flexes trunk
Internal Abdominal oblique
N
O: Myosepta & Horizontal septum
I: Myosepta & Horizontal septum
A: Laterally flexes trunk